Microsoft Visual Studio 2012 cannot set breakpoint in c# file

Question

I have Microsoft Visual Studio Professional 2012 installed, version 11.0.60610.01 Update 3.

When debugging a c# (.cs) file Visual Studio gives me the following message

Answer 1

Well, sheesh...for people as dumb as me, here's one more thing to consider:

You can put breakpoints on the curly braces at the start or close of a method, and you can put breakpoints on any line that is doing something (e.g. assigning a value or calling a method). However, you can't put a breakpoint on a line that is only declaring a variable or otherwise "doing nothing."

E.g. I had a method:

public IEnumerable GetList()
{
    int distance;
    var otherVar = SomeValue;
}

I was trying to put the breakpoint on the first line with int distance;, which is something that works fine in other IDEs, but that doesn't work in VS. I had to go up to the brace or down to the next line with the assignment in order to get the breakpoint to set.

5 minutes of my life wasted, that I'll never get back, trying to debug a non-issue ;-p